Our Fibrotech sound-absorbing acoustic panels are designed to match your home's style. They can be used on walls and ceilings. The panels feature grey oak, knot-free, real wood veneers. They are sound absorbing and have a certified NRC (Noise Reduction Coefficient) value of 0.55, meaning 55% of the sound energy that contacts the panels is absorbed. The panels are made from FSC certified materials and have a black polyester cover made from recycled plastic. The dimensions of the panels are 2.44m in length, 605mm in width, and 22mm in depth.